Eureka Weather in July
Average highs run from 89°F on July 1 to 91°F on July 31, and lows from 66°F to 67°F. Normal precipitation for the month is 4.56 in over about 8 wet days.
July day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
July at a glance
- Average high
- 90°F
- Average low
- 67°F
- Precipitation
- 4.56 in
- Record high
- 120°FJul 18, 1936
- Record low
- 46°FJul 3, 1924
- Chance of a freeze
- 0%
- Days of 90°F or more
- 17.4
- Daylight
- 14 h 44 min to 14 h 07 min
- Cloud cover
- 47%
- Humidity
- 69%
- Dew point
- 67°F
- Wind
- 8.9 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jul 1 | 89°F | 66°F | 110°F 1980 | 52°F 1918 | 26% | 0% |
| Jul 2 | 89°F | 66°F | 109°F 1933 | 50°F 1959 | 26% | 0% |
| Jul 3 | 89°F | 67°F | 105°F 1911 | 46°F 1924 | 26% | 0% |
| Jul 4 | 89°F | 67°F | 108°F 1911 | 50°F 1924 | 26% | 0% |
| Jul 5 | 89°F | 67°F | 108°F 1911 | 48°F 1972 | 26% | 0% |
| Jul 6 | 89°F | 67°F | 106°F 1980 | 49°F 1940 | 26% | 0% |
| Jul 7 | 90°F | 67°F | 106°F 1991 | 52°F 1915 | 26% | 0% |
| Jul 8 | 90°F | 67°F | 107°F 1913 | 55°F 1922 | 26% | 0% |
| Jul 9 | 90°F | 67°F | 110°F 1980 | 55°F 1920 | 26% | 0% |
| Jul 10 | 90°F | 67°F | 111°F 1980 | 51°F 1961 | 25% | 0% |
| Jul 11 | 90°F | 67°F | 111°F 1954 | 54°F 1920 | 25% | 0% |
| Jul 12 | 90°F | 67°F | 115°F 1954 | 55°F 1975 | 25% | 0% |
| Jul 13 | 90°F | 67°F | 115°F 1954 | 52°F 1964 | 25% | 0% |
| Jul 14 | 90°F | 67°F | 117°F 1954 | 51°F 1967 | 25% | 0% |
| Jul 15 | 91°F | 68°F | 113°F 1936 | 50°F 1967 | 25% | 0% |
| Jul 16 | 91°F | 68°F | 112°F 1936 | 53°F 2014 | 25% | 0% |
| Jul 17 | 91°F | 68°F | 114°F 1936 | 53°F 2014 | 25% | 0% |
| Jul 18 | 91°F | 68°F | 120°F 1936 | 57°F 1917 | 25% | 0% |
| Jul 19 | 91°F | 68°F | 112°F 1954 | 54°F 2009 | 25% | 0% |
| Jul 20 | 91°F | 68°F | 109°F 1954 | 52°F 1971 | 25% | 0% |
| Jul 21 | 91°F | 68°F | 108°F 1974 | 47°F 1970 | 25% | 0% |
| Jul 22 | 91°F | 68°F | 109°F 1954 | 48°F 1970 | 25% | 0% |
| Jul 23 | 91°F | 68°F | 114°F 1936 | 50°F 1970 | 25% | 0% |
| Jul 24 | 91°F | 68°F | 111°F 1936 | 56°F 1909 | 25% | 0% |
| Jul 25 | 91°F | 68°F | 107°F 1936 | 50°F 1911 | 25% | 0% |
| Jul 26 | 91°F | 67°F | 106°F 1910 | 54°F 2004 | 25% | 0% |
| Jul 27 | 91°F | 67°F | 108°F 1917 | 54°F 2004 | 25% | 0% |
| Jul 28 | 91°F | 67°F | 107°F 2011 | 52°F 2004 | 25% | 0% |
| Jul 29 | 91°F | 67°F | 111°F 1980 | 54°F 2005 | 25% | 0% |
| Jul 30 | 91°F | 67°F | 112°F 1986 | 51°F 1971 | 25% | 0% |
| Jul 31 | 91°F | 67°F | 110°F 1934 | 50°F 1971 | 25% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- July 1
- sunrise 6:07 AM, sunset 8:51 PM
- July 31
- sunrise 6:28 AM, sunset 8:35 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00142622 (Eureka 1E), public domain. Records: NOAA GHCN-Daily, station USC00142622, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.